Well, since my battery is totally degenerate, how do you explain the fact that on the same battery on the ios 14.5.1 system, I could use the phone for 16 hours. And earlier on the same battery on ios 14.2 I had the same problem as I have now on 14.7.1, what suddenly on 14.5.1 my battery repaired itself?
I will also mention that I used the special version of ios 14.5.1 because my phone worked flawlessly, and I did not want to update the device because on the forum I read that problems with 14.2 returned. Unfortunately, I was forced to update, because suddenly my applications stopped working when I was using mobile data, they only worked when I was connected to wi-fi, even restarting the network settings did not help. So don't write me stupid things and don't justify a badly written system ....
I am done, I will not argue with you.